Troubleshooting

Troubleshooting Your Network Using Port Mirroring and Packet Capture

Scenario Let’s say you have a DHCP server running on a Cisco Switch that is behaving strangely and you want to examine the traffic over a couple of hours while not creating a gigantic unmanageable capture file. A note here: I am doing this on a Cisco switch, but most all vendor switches support this …

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Troubleshooting The Internet Using Ping (a.k.a. ICMP)

In this article, I wanted to provide a guide to using ping – ICMP Echo – to troubleshoot your network.  Most people use ping on their platform to test if they can reach a given destination.  Just open up a terminal (Linux or MAC OSx) or command line (Windows: Start> Run> cmd) and enter the …

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CSI-HO-005 – Hands-On MPLS Troubleshooting Skills

   CellStream, Inc. – Telecom Consulting and Training!             2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students   Course Description: CellStream has developed a number of variants of this skills-based course using MPLS network emulations and Wireshark. …

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